Bi-Directional Knife Gate Valve

The HP series knife gate is a bi-directional high performance valve specially designed to withstand high pressures (PN10, PN16, PN25, PN40, PN64, PN100, PN160, PN250). Resilient seated valve suitable to handle semi-solids, raw sewage, mud, dehydrated sludge and general industrial applications.

General Features

  • 100% tight in both directions
  • Two split body arrangements
  • U-seat with a steel stiff core vulcanized, fixed between the two bodies by screws.
  • Adjustable external stuffing box, allowing upper sealing replacement without valve disassembling from the pipeline
  • Short face-to-face dimension
  • Smooth and unobstructed full flow passage, no cavity or void in body, means no clogging
  • Easy drive replacement
  • Self cleaning design; little maintenance required
  • Proximity and limit switch mounting points

Technical Data

Size range:

  • DN-50 (2”) to DN-1800 (72”)

Working pressure:

  • DN 350 to DN 600: 10 kg/cm2
  • DN 50 to DN600: 16 kg/cm2
  • DN 50 to DN600: 25 kg/cm2
  • DN 50 to DN600: 40 kg/cm2
  • (For higher pressure, please ask factory)

Flange ratings:

  • PN10, PN16, PN25, PN40, PN64, PN100, PN160, PN250 and ANSI B16.5
  • (Other flange drillings under request)

Coating

  • RAL 5017, 150 microns epoxy coated

Directives:

  • Pressure equipment directive 97/23/CE
  • DIR 2006/42/CE (MACHINES)
  • DIR 94/9/CE (ATEX)
  • Approved certificate for potable water

Application Fields

  • Wastewater treatment
  • Dehydrated sludge
  • Power plants
  • Mining
  • Oil rigs
  • Tunnel boring
  • Etc